Just want to check if a Electivire could be a good alternative. He's already lvl 50
My others strongest steel type ones, they're rather bleak.
Palkia lvl 65
Dialga lvl 68
Goodra 74
EDIT: Just caught Shaymin while brainstorming. Goodra was able to tank a few hits after using Shelter.
While Electivire is able to get Thunder Wave , Rest, and Spark/Wild Charge, as well as having a bit higher HP stat and Speed stat then Probopass
Probopass has more bulk, and Darkrai is faster then Electivire, plus Electivire doesn’t resist any of Darkrai’s moves so it’s probably not going to be able to hang in their as long as Probopass could.
As for Dialga, it would be able to take hits from Darkrai and does resist one of Darkrai’s moves being Psychic. Dialga also can get rest.
However the trade off with using Dialga over Probopass is that Dialga doesn’t get any moves that allow it to cure the Drowsy status condition, and all of the moves that Dialga can learn to inflict status condition on Darkrai all do damage.
As for Palkia it’s similar to Dialga but unlike Dialga Palkia doesn’t resist any of Darkrai’s moves since Palkia is a Water/Dragon type Pokémon it will take neutral damage from Darkrai’s moves. Other then that additional trade of Palkia’a trade offs are very similar to Dialga’s.
Now as for Hisuian Goodra it basically has the same trades as Dialga.
Basically while some of the options to use over Probopass aren’t bad per say they have trade offs like for instance not being able to cure the Drowsy status condition or not being nearly as bulky or other trade offs.
Like take Spiritomb for example while it does have it perks like resisting all of Darkrai’s moves and being immune to Psychic type moves, it can also get Rest and Hypnosis as well as increased its Bulk through Calm Mind.
The thing is however it has no way to cure the Drowsy status condition.